No... it's just one of those things. Like that one math problem where the
answer doesn't make sense, but it works every time you check it. :)
Gary
On Tue, Dec 13, 2011 at 11:26 AM, <clhyer@cox.net> wrote:
>
> Gary & Michael,
> Thanks for the replies guys. Unless I hear another possibility to check
> out I plan to replace the vac. booster this weekend.
> Gary, you sure aren't discrediting me; maybe the FSM? LOL.
> Cal
>
>
> > Date: Mon, 12 Dec 2011 11:04:28 -0500
> > From: <clhyer@cox.net>
> > Subject: DML: Brake questions
> >
> > Good morning folks,
> > Working on my son's '98 V-6 2WD Dak and am kinda stumped. Briefly,
> about a year ago the brake and ABS lights came on. At the same time the
> pedal took more effort, took more pedal before starting to work and when
> stopped you can feel the pedal pulsing like a spring snapping back on the
> pedal.
> > We replaced the speed sensor at the rear end without success. I
> replaced the master cylinder without any change.
> > I've taken it to a shop to have the code read and it said it couldn't
> read the ABS controller (located on the LF fender). I picked up a used
> controller at a junk yard and so far (about 2 weeks) the lights have stayed
> off. The pedal remains unchanged.
> > I have performed the various tests outlined in the FSM and cannot locate
> the problem.
> >
> > The last test I performed was with a vacuum gauge to check the booster.
> According to the directions and diagram the vac. gauge is hooked into the
> vac. line with a "T" fitting. The vac. line into the T is clamped off, the
> engine shut off and you see how long vac. is held. A loss of 1" in 15
> seconds is supposed to indicate a bad booster. When I perform this test,
> as soon as I clamp the vac. line the vac. goes to zero. It don't move when
> the truck is shut off either! Duh!!!
> > Anyhow, I performed this same test on my '99 Dak which has no brake
> issues. The vac. gauge does the exact same thing.
> >
> > The truck stops fine, it just takes more pedal and more effort. Any
> ideas for me?
> > Thanks,
> > Cal
> >
> > ------------------------------
> >> ------------------------------
> >
> > Date: Mon, 12 Dec 2011 15:20:16 -0500
> > From: Michael Maskalans <dml@tepidcola.com>
> > Subject: Re: DML: Brake questions
> >
> > On 12-Dec, 2011, at 11:04 , <clhyer@cox.net> wrote:
> >
> > >
> > > The truck stops fine, it just takes more pedal and more effort. Any
> ideas for me?
> >
> > That sure sounds like a booster issue to me, but your similar test
> results do make me question it. Until that point I was thinking "booster,
> booster, booster" though so I'm going to stick with my gut and say you've
> got a bad booster.
> >
> > Michael
> >
> > ------------------------------
> >
> > Date: Mon, 12 Dec 2011 16:06:57 -0600
> > From: Gary Hedlin <superdak@gmail.com>
> > Subject: Re: DML: Brake questions
> >
> > It's screaming booster to me too... I know the test results say
> otherwise,
> > but I've been down that road with the 98, so I have to say its the
> booster
> > issue. Not to discredit you or your tests, but I just cant see anything
> > else.
> >
> > Gary
> >
> >
>
>
-- Gary Hedlin Show Car Signs by Hedlin Designs www.showcarsign.com--Many talk about those who died, but too few talk about those who survived... THANK A VET!
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